Code G already means a direct rollover, so TurboTax only needs to ask if the rollover was to some kind of Roth account. If you answer that it was not rolled over to any kind of Roth account, TurboTax automatically treats it as nontaxable income by including it on Form 1040 line 5a but excluding it from taxable income on line 5b. TurboTax also marks the ROLLOVER box next to this line. This nontaxable income has no effect on your tax return other than being required to be shown on line 5a.
